The immune system

 The immune system
1 / 20
next
Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 2

This lesson contains 20 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 30 min

Items in this lesson

 The immune system

Slide 1 - Slide

Immune system
- works against pathogens 
- things that do not belong in your body
- viruses, bacteria, fungi and parasites can cause infections

Slide 2 - Slide

Antibodies
- your body produces antibodies against antigens
- first infection: IgM
- following infection(s): IgG
(IgE, IgD and IgA are more associated with mucosal- and cellular immunity )

Slide 3 - Slide

Antibodies
How does production of antibodies work?

Slide 4 - Slide

Slide 5 - Slide

Where would a white bloodcell produce antibodies against in case of the coronavirus?
A
The RNA
B
The envelope protein
C
The spike protein
D
the membrane protein

Slide 6 - Quiz

How do antibodies work?
- first of all: an antibody attaches itself to an antigen with his binding side
- this fits perfectly 

Slide 7 - Slide

How do antibodies work?
-other white bloodcells (macrophages) come into action to 'eat' and digest the antigen

Slide 8 - Slide

Difference in white bloodcells
B-Cells attack invaders outside cells

T-cells attack invaders inside cells 

(T-cells are produced in the Thymus - a small organ close to the heart, as you grow the thymus gets smaller and eventually seems to dissapear)

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

What type of white bloodcell will act against Covid-19 mainly?
A
T-cells
B
B-cells

Slide 12 - Quiz

Active immunity
-natural
Your body encounters the pathogen (eg - chicken-pox) in an infection

-artificial
You receive a vaccination

Slide 13 - Slide

Vaccination
What is a vaccine?

A vaccine consists of 
-dead or weakened pathogens 
-a part of a pathogen


Slide 14 - Slide

where does the word vaccination come from?
It comes from vacca, which means..
A
vacca is immune in greek
B
vacca is immune in latin
C
vacca is latin for cow
D
vacca is latin for friend

Slide 15 - Quiz

Slide 16 - Slide

Pox
Small-pox and cow-pox were related
The antigens were very much alike
The antibodies formed against cow-pox also worked against small-pox! (cross-resistence)

Slide 17 - Slide

Vaccination regime
allmost all childeren in the Netherlands receive vaccinations.
 

Slide 18 - Slide

Passive immunity
passive means that you don't do anything
So it means that your body is NOT producing antibodies, but receives antibodie from someone else. 
It generates NO memory.

Slide 19 - Slide

Homework

Answer questions chapter 14 and 16

Slide 20 - Slide